The reason, some believe, the AA helps people is because it provides a depth of Human connection, where they are able to open up to complete strangers but each willing to share their deepest, most guarded, embarrassing flaws.

The former Surgeon General, Vivek Murthy, believed that lack of human connection in our modern world is behind a number of health issues such as depression, dementia, and early death.
There is also a study that has used the nurses in USA to understand many health problems. They found that while nurses died 66% more often when they lacked social integration, their breast cancer death rate was twice as much than those with close connections. Most surprising though was that those who had many close friends, they were even far better in terms of survival than even those who had family connections but no friends.

Who knew what costs us nothing is also the most potent source of our health.

No wonder it's absence, loneliness, is as bad as smoking 15 cigarettes a day.

Maybe this why Aristotle has said, "Life without a friend is not worth living."
https://ascopubs.org/doi/abs/10.1200/jco.2005.04.2846